diff --git a/reference/uri/uri/whatwg/url/getport.xml b/reference/uri/uri/whatwg/url/getport.xml
index 10587042db8e..c123438c6158 100644
--- a/reference/uri/uri/whatwg/url/getport.xml
+++ b/reference/uri/uri/whatwg/url/getport.xml
@@ -35,16 +35,20 @@
    <programlisting role="php">
 <![CDATA[
 <?php
-$url = new \Uri\WhatWg\Url("https://example.com:443");
+$url = new \Uri\WhatWg\Url("https://example.com:8080");
+var_dump($url->getPort());
 
-echo $url->getPort();
+// 443 is the default port for https, so it is not stored.
+$url = new \Uri\WhatWg\Url("https://example.com:443");
+var_dump($url->getPort());
 ?>
 ]]>
    </programlisting>
    &example.outputs;
    <screen>
 <![CDATA[
-443
+int(8080)
+NULL
 ]]>
    </screen>
   </example>
diff --git a/reference/uri/uri/whatwg/url/parse.xml b/reference/uri/uri/whatwg/url/parse.xml
index 560af29fd6e0..a14cb5ebf7a8 100644
--- a/reference/uri/uri/whatwg/url/parse.xml
+++ b/reference/uri/uri/whatwg/url/parse.xml
@@ -79,7 +79,7 @@ if ($url !== null) {
    &example.outputs;
    <screen>
 <![CDATA[
-Valid URL: https://example.com
+Valid URL: https://example.com/
 ]]>
    </screen>
   </example>
diff --git a/reference/uri/uri/whatwg/url/withport.xml b/reference/uri/uri/whatwg/url/withport.xml
index 400eabac1e06..ec298021a044 100644
--- a/reference/uri/uri/whatwg/url/withport.xml
+++ b/reference/uri/uri/whatwg/url/withport.xml
@@ -50,16 +50,21 @@
 <![CDATA[
 <?php
 $url = new \Uri\WhatWg\Url("https://example.com:8080");
+
+// 443 is the default port for https, so it is not stored.
 $url = $url->withPort(443);
+var_dump($url->getPort());
 
-echo $url->getPort();
+$url = $url->withPort(8443);
+var_dump($url->getPort());
 ?>
 ]]>
    </programlisting>
    &example.outputs;
    <screen>
 <![CDATA[
-443
+NULL
+int(8443)
 ]]>
    </screen>
   </example>